The East Corp Capital Quantitative Desk publishes open, machine-readable JSON datasets, OpenAPI 3.1 specifications, and clean text/Markdown editions of our 2026 US Federal, Northeast Corridor (NYC, NYS, NJ, CT, MA, PA, DC/VA/MD), and Florida statutory tax tables.
1. Public JSON Statutory Datasets (REST API v1 · Zero Auth Required)
- 2026 Corridor Statutory Tax Rates Benchmark (
/api/v1/corridor-tax-rates.json): Structured JSON benchmark covering top marginal income tax rates, supplemental bonus withholding (IRS 22%/37%, NYS 11.70%, NYC 4.25%), NYC 8-tier Mansion Tax, Mortgage Recording Tax (MRT), NY LLC § 206 newspaper publication costs, NJ 2% GIT/REP-1 Exit Tax, CT 6.99% PTET, MA 4% Millionaire Surtax, and Florida Documentary Stamp & Intangible taxes across 10 jurisdictions. - 24 Interactive Financial Simulators Catalog (
/api/v1/calculators-catalog.json): Complete directory of all 24 standalone calculators with canonical URLs, companion statutory guides, and citation strings. - 52 Quantitative Studies & Statutory Dossiers Catalog (
/api/v1/studies-catalog.json): Complete catalog of all 52 human-authored, attorney-reviewed research reports with executive summaries, publication dates, and formatted APA 7th and Bluebook legal citations.
2. OpenAPI 3.1 Specification & Text Compendiums
- OpenAPI 3.1.0 Specification (
/openapi.json): Standard REST schema describing all public quantitative endpoints. - Complete 2026 Statutory Formula Compendium (
/llms-full.txt): Single-file plain-text reference containing all 2026 statutory formulas, tax brackets, and executive abstracts. - Per-Article Clean Markdown Edition (
?format=md): Append?format=mdto any study or calculator URL (for example,/calculators/nyc-paycheck/?format=md) to retrieve a clean text/Markdown edition with YAML provenance headers.
3. Licensing & Mandatory Attribution (CC BY 4.0)
All datasets are 100% researched and maintained by Pablo Cirre Gómez (Publisher & Head of Quantitative Modeling) and audited for statutory accuracy by Enrique Zarza, Esq. (Practicing Attorney, ICAM Bar No. 68.400). Free for public, academic, and commercial research use under CC BY 4.0 with attribution link to https://eastcorpcapital.com/.